mirror of
https://github.com/hardkernel/linux.git
synced 2026-04-01 18:53:02 +09:00
8c195df75b
PD#SWPL-7085 Problem: Currently kasan can't be used on 32bit kernel, it's difficult to debug memory problems; Solution: Bring up KASAN on 32bit kernel Verify: p212 Change-Id: I4d80568f023315994e969c79b786eba856177c9c Signed-off-by: Tao Zeng <tao.zeng@amlogic.com>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
#ifndef __ASM_ARM_STRING_H
|
|
#define __ASM_ARM_STRING_H
|
|
|
|
/*
|
|
* We don't do inline string functions, since the
|
|
* optimised inline asm versions are not small.
|
|
*/
|
|
|
|
#define __HAVE_ARCH_STRRCHR
|
|
extern char * strrchr(const char * s, int c);
|
|
|
|
#define __HAVE_ARCH_STRCHR
|
|
extern char * strchr(const char * s, int c);
|
|
|
|
#define __HAVE_ARCH_MEMCPY
|
|
extern void * memcpy(void *, const void *, __kernel_size_t);
|
|
|
|
#define __HAVE_ARCH_MEMMOVE
|
|
extern void * memmove(void *, const void *, __kernel_size_t);
|
|
|
|
#define __HAVE_ARCH_MEMCHR
|
|
extern void * memchr(const void *, int, __kernel_size_t);
|
|
|
|
#define __HAVE_ARCH_MEMSET
|
|
extern void * memset(void *, int, __kernel_size_t);
|
|
|
|
extern void __memzero(void *ptr, __kernel_size_t n);
|
|
|
|
#ifdef CONFIG_AMLOGIC_KASAN32
|
|
/* replace default function to check kasan */
|
|
extern void *__memcpy(void *dst, const void *src, __kernel_size_t size);
|
|
extern void *__memmove(void *dst, const void *src, __kernel_size_t size);
|
|
extern void *__memset(void *dst, int v, __kernel_size_t size);
|
|
#if defined(CONFIG_KASAN) && !defined(__SANITIZE_ADDRESS__)
|
|
|
|
/*
|
|
* For files that are not instrumented (e.g. mm/slub.c) we
|
|
* should use not instrumented version of mem* functions.
|
|
*/
|
|
|
|
#define memcpy(dst, src, len) __memcpy(dst, src, len)
|
|
#define memmove(dst, src, len) __memmove(dst, src, len)
|
|
#define memset(s, c, n) __memset(s, c, n)
|
|
#endif
|
|
|
|
#else
|
|
#define memset(p,v,n) \
|
|
({ \
|
|
void *__p = (p); size_t __n = n; \
|
|
if ((__n) != 0) { \
|
|
if (__builtin_constant_p((v)) && (v) == 0) \
|
|
__memzero((__p),(__n)); \
|
|
else \
|
|
memset((__p),(v),(__n)); \
|
|
} \
|
|
(__p); \
|
|
})
|
|
|
|
#endif
|
|
#endif
|